Astra 1M

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Astra 1M
Mission type Communication
Operator SES
COSPAR ID 2008-057A
SATCAT № 33436
Website SES - Astra 1M
Mission duration 15 years (planned)
Spacecraft properties
Bus Eurostar 3000S
Manufacturer EADS Astrium
Launch mass 5,344 kilograms (11,782 lb)
Power 8.3–9.3 kW
Start of mission
Launch date 5 November 2008, 20:44:20 (2008-11-05UTC20:44:20Z) UTC
Rocket Proton-M/Briz-M
Launch site Baikonur 200/39
Contractor ILS
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 19.2° East
Slot Astra 19.2°E
Perigee 35,788 kilometres (22,238 mi)[1]
Apogee 35,795 kilometres (22,242 mi)[1]
Inclination 0.03 degrees[1]
Period 1436.05 minutes[1]
Epoch 21 January 2015, 01:56:10 UTC[1]
Band 36 J band (IEEE Ku band)
Bandwidth 26 megahertz
33 megahertz
TWTA power 150 watts
EIRP 53 decibel-watts

Astra 1M is a Luxembourgian geostationary communications satellite which is operated by SES. It is positioned in geostationary orbit at a longitude of 19.2 degrees East, from where it is used to provide direct-to-home broadcasting to Europe.

Astra 1M was built by EADS Astrium under a contract signed in 2005, and is based on the Eurostar 3000S satellite bus. It is equipped with thirty six transponders operating in the J band of the NATO-defined spectrum, or the Ku band of the older IEEE-defined spectrum. At launch it had a mass of 5,344 kilograms (11,782 lb),[2] with an expected operational lifespan of around 15 years,[3] however four of its transponders will be deactivated five years after launch.[4] At the beginning of its operational life, it had a maximum power consumption of 9.3 kilowatts, which is expected to have decreased to 8.3 kilowatts by the end of the satellite's operational life.[2]

The launch of Astra 1M was conducted by International Launch Services, using a Proton-M carrier rocket with a Briz-M upper stage. The launch occurred from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan, at 20:44:20 GMT on 5 November 2008.[5] Astra 1M was successfully placed into a geosynchronous transfer orbit, from which it raised itself to geostationary orbit by means of an onboard apogee motor.

See also[edit]


  1. ^ a b c d e "ASTRA 1M Satellite details 2008-057A NORAD 33436". N2YO. 21 January 2015. Retrieved 25 January 2015. 
  2. ^ a b "Astra 1M". SES Astra. Retrieved 31 May 2010. 
  3. ^ "UCS Satellite Database". Union of Concerned Scientists. 1 April 2010. Archived from the original on 3 June 2010. Retrieved 31 May 2010. 
  4. ^ Krebs, Gunter. "Astra 1M". Gunter's Space Page. Archived from the original on 29 May 2010. Retrieved 31 May 2010. 
  5. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Archived from the original on 7 May 2010. Retrieved 31 May 2010. 

External Links[edit]

  • IMS Official provider's site